BORING TOOL CONTROL USING REMOTE LOCATOR

• US 20130118810A1
• Filed: 01/03/2013
• Published: 05/16/2013
• Est. Priority Date: 04/27/1998
• Status: Active Grant

• Current Assignee: Merlin Technologies Incorporated
• Original Assignee: Merlin Technologies Incorporated
• Inventors: Mercer, John E.
• Granted Patent: US 8,997,890 B2
• Time in Patent Office: Days
• US Class Current: 175/45
• CPC Class Codes: E21B 44/00 Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
• CPC Class Codes: E21B 44/005 Below-ground automatic control systems
• CPC Class Codes: E21B 47/0232 at least one of the energy sources or one of the detectors being located on or above the ground surface
• CPC Class Codes: E21B 47/024 of devices in the borehole determining slope or direction of the borehole E21B47/022
• CPC Class Codes: E21B 47/13 by electromagnetic energy, e.g. radio frequency
• CPC Class Codes: E21B 7/046 horizontal drilling drilling with mechanical conveying means E21B7/003
• CPC Class Codes: E21B 7/06 Deflecting the direction of boreholes
• CPC Class Codes: E21B 7/068 drilled by a down-hole drilling motor down-hole drives per se E21B4/00, E21B7/067 takes precedence

Abstract

A drilling system performs underground boring using a drill rig and a boring tool which is configured for moving through the ground under control of the drill rig to form an underground bore. A monitoring arrangement, forming part of the system, includes a detection arrangement at the drill rig for monitoring at least one operational parameter to produce a data signal relating to at least one of a utility to be installed in the underground bore, the drill rig and the boring tool. A portable device forms another part of the system for receiving the data signal relating to the operational parameter for use by the portable device. A communication arrangement, for example using telemetry, transfers the data signal from the drill rig to the portable device. The operational parameter may be monitored for the purpose of preventing equipment failure.

Claims

1. In a system for performing underground boring including a handheld portable device, said system also including a drill rig and a boring tool which is configured for moving through the ground to form an underground bore, said boring tool including a transmitter for emitting a locating signal, said handheld portable device comprising:

a housing configured for handheld movement by an operator;

a receiver supported by the housing for receiving the locating signal;

a processor configured to generate certain information about the position of the boring tool in response to said locating signal and to produce command signals in view of said certain information; and

a transmitter for transmitting the command signals to the drill rig such that the command signals can be used to control the boring tool.

2. The handheld portable device of claim 1 wherein the locating signal is a dipole locating signal and the handheld portable device is configured to receive the dipole locating signal.

3. The handheld portable device of claim 2 wherein the portable device is configured for generating certain information about the position of the boring tool based on the dipole locating signal.

4. The handheld portable device of claim 3 wherein the portable device is configured for providing indications relating to the position of the boring tool.

5. The handheld portable device of claim 1 wherein said command signals include steering commands for use in steering said boring tool.

6. The handheld portable device of claim 1 wherein said command signals include roll orientation commands for use in controlling the directional orientation of the boring tool.

7. The handheld portable device of claim 1 wherein said command signals include advance, retract and stop commands for indicating that the boring tool should be moved forward, backward or held stationary.

8. The handheld portable device of claim 1 including a control arm positioned for actuation by an operator of the handheld portable device such that the operator can cause said command signals to be transmitted from the portable device.

9. The handheld portable device of claim 8 wherein the control arm is a joystick.

10. The handheld portable device of claim 9 wherein said joystick is configured for use in generating straight, advance, retract and stop commands such that the boring tool should move forward, backward or be held stationary.

11. The handheld portable device of claim 1 wherein said boring tool is configured for transmitting roll data, as part of said locating signal, and wherein said handheld portable device further comprises:

said receiver further configured for receiving said roll data;

said processor further configured to determine a detected roll orientation of said boring tool, based on the roll data, which is related to steering the boring tool; and

a display for displaying at least the detected roll orientation of the boring tool.

12. The handheld portable device of claim 11 wherein said display displays a desired roll orientation of the boring tool.

13. The handheld portable device of claim 12 wherein said handheld portable device includes a joystick positioned thereon and adapted for actuation by an operator such that the operator can issue commands to steer in a particular direction, advance or retract the boring tool and wherein said desired roll orientation of the boring tool is displayed based on the operator'"'"'s actuation of said joystick.

14. The handheld portable device of claim 12 wherein display includes a clock face upon which said detected roll orientation and said desired roll orientation are displayed.

15. The handheld portable device of claim 14 wherein said clock face includes a center position which represents boring straight ahead such that the boring tool rotates while advancing.

16. The handheld portable device of claim 1 wherein said system includes a drill string that extends from said drill rig to said boring tool for applying a push force to the boring tool to advance the boring tool through the ground and said handheld portable device further comprising:

a receiver configured for receiving said data signal as defining at least a selected one of a push force that is applied to the drill string by the drill rig and a pressure of drilling mud that is supplied to the drill string by the drill rig.

17. The handheld portable device of claim 16 including a display, forming part of the handheld portable device, for producing a display including at least the selected one of said push force and the pressure of the drilling mud.

18. The handheld portable device of claim 17 wherein said display is configured for displaying a real time status of the drilling mud.

19. The handheld portable device of claim 1 wherein said data signal represents the operational parameter as at least one of a push force which drives the boring tool, a temperature of the boring tool, a pressure of a drilling mud that is supplied to the boring tool, a status of a battery used in the boring tool, a curvature of the underground bore and a proximity of the boring tool to an underground utility.

20. The handheld portable device of claim 19 configured to provide a real time indication of the status of each parameter that is detected.

21. The handheld portable device of claim 20 wherein said real time indication includes an actual reading of at least one parameter that is detected.

22. The handheld portable device of claim 1 further configured for handheld movement by the operator.